Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Texas at San Antonio, San Antonio, TX (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Texas at San Antonio, San Antonio, TX (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. at Buffalo - The State Univ. of New York, Buffalo, NY (United States)
Oxygen content in transition metal oxides is one of the most important parameters to control for the desired physical properties. Recently, we have systematically studied the oxygen content and property relationship of the double perovskite PrBaCo2O5.5+δ (PBCO) thin films deposited on the LaAlO3 substrates. The oxygen content in the films was varied by in-situ annealing in a nitrogen, oxygen, or ozone environment. Associated with the oxygen content, the out-of-plane lattice parameter progressively decreases with increasing oxygen content in the films. The saturated magnetization shows a drastic increase and resistivity is significantly reduced in the ozone annealed samples, indicating the strong coupling between physical properties and oxygen content. Furthermore, these results demonstrate that the magnetic properties of PBCO films are highly dependent on the oxygen contents, or the film with higher oxygen uptake has the largest magnetization.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1414131
- Alternate ID(s):
- OSTI ID: 1348270
- Report Number(s):
- LA-UR-16-27359; APPLAB; TRN: US1800656
- Journal Information:
- Applied Physics Letters, Vol. 110, Issue 9; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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